Wrench.



A. HULTHIN.

WRENCH.

APPLlcATloN FILED SEPT. 9. 1915.

Patented Apr. 11, 1916.`y

g1/wanton .nza www THB WLUMBIA PMN'OGRAPH CU., WASH-KNOWN. D. C.

ANTON HULTHIN, or BROOKLYN, NEW Yonx.

WRENCH.

Application filed September 9, 1915.

To all whom t may concern Be it known that I, AN'roN HULTHIN, a subject of the King of Norway, but who has taken out a declaration of intention to become a citizenof the United States, residing at Brooklyn, in the county of Kings and State of NewYork,- have :invented .certain new and useful Improvements in Wrenches,

of which the following is a specification.

The invention relates to wrenches, and more particularly to the class of quick-acting wrenches. The primary object of the invention is the provision of a wrench of this character, wherein the movable jaw is freely slidable upon the shank in one direction, for the quick adjustment thereof, and when said movable jaw coperates with the stationary jaw, for holding a piece of work, there will be a positive grip of the movable jaw on the shank, so as to firmly hold the work, without any possibility of the slipping of the movable jaw.

Another object of the invention is the provision of a wrench of this character, wherein the movable jaw is adjustably mounted on the shank to assure easy and quick adjustment, and the firm and positive gripping of the work between the movable and stationary jaws of the wrench.

A further object of the invention is the provision of a wrench of this character, wherein the necessity of serrating or cutting teeth in the shank thereof is eliminated, as the movable jaw can be freely adjusted and positively locked against slipping upon the said shank, while the wrench is in use.

A further object of the invention is the provision of a wrench of this character, which is simple in construction, thoroughly reliable and efcient in operation, quick and easily adjusted, positive in action, strong, durable, and inexpensive in manufacture.

With these and other objects in view the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claims hereunto appended.

In the accompanying drawing; Figure 1, is a side elevation of a wrench constructed in accordance with the invention. Fig. 2, a rear edge elevation. Fig. 3, is a fragmentary longitudinal sectional view. Fig. 4,V is a sectional view on the line 4 4 of Fig. 1.

Similar reference characters indicate cor- Specication of Letters Patent.

Patented Apr. 11, 1916.

Serial No. 49,719.

responding parts throughout the several views in the drawing.

Referring to the drawing in detail, the wrench comprises a shank 5, which is of uniform width and thickness throughout its length, formed at one end with a stationary jaw 6, while coperating therewith isa movable or slidable jaw 7 which is adapted to travel along the inner edge of the shank 5, toward and away from the stationary jaw 6, thereon, for the adjustment of the wrench, in a manner presently described.

At the heel or rear edge of the shank 5, is a shoe 8, formed on its inner face with a plurality of rows of cross cut teeth 9, adapted to bite into the shank 5, to hold the shoe against movement in one direction, yet permitting it to freely slide upon the shank in the reverse direction. Formed in the outer' face of the shoe 8, are spaced transversely disposed notches 10, having loosely seated therein the closed ends of substantially U- shaped bails or clips 11, which have their limbs 12, angularly disposed with respect to the closed ends thereof, and these limbs have passed therethrough and also through the movable jaw 7, pivots 13, for swingingly connecting the bails or clips thereto.

The angular disposition of the limbs 12, of the bails or clips normally sustains the shoe 8, slightly in advance of the movable jaw 7, so that when pressure is applied to the latter the teeth 9, on said shoe will bite into the shank 5, and thus hold the jaw 7, against movement in one direction thereon.

Bridging the notches 10, and overlying the closed ends of the bails or clips 11, are the free ends of a leaf spring 14, which is fastened medially thereof to the shoe 8, by means of a screw 15, andthis spring 14, tensions the bails or clips 11, yet permits the swinging of the same for the free adjustment of the movable jaw 7 in either direction upon the shank 5, for the quick and accurate adjustment of the movable jaw relative to the stationary jaw of the wrench for the positive and firm gripping of the work thereby.

From the foregoing it is thought that the construction and manner of operation of the wrench will be clearly understood, and therefore la more explicit explanation has been omitted.

What is claimed is:

1. A wrench having a shank provided with a stationary jaw,- a movable jaw slidable on the inner edge of the shank, a shoe movable over the rear edge of the shank and having cross cut teeth to lock it against movement in one direction When in contact with the shank, said shoe having a plurality of semi-circular seats upon the face opposite to the teeth, members pivotally connected with the movable jaw and straddling the shoe, the portions engaging the shoe being correspondingly shaped to the seats and titting therein for oscillation, and means acting upon the seated portions of the members to normally hold the shoe in advance of the movable j avv to hold the shoe and jaw against movement in one direction on the shank.

2. A Wrench comprising a shank having a fixed jaW, a movable jaw on the shank, a toothed locking shoe on the shank, and having seats therein, clips loosely engaged in the'l ANTON HULTHIN.

Copies of this patent may be obtained for ve cents each, byaddressing the Commissioner of Patents, Washington, D. C. 

